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Sagot :
Answer:
3 gram, 1.5 gram molecules
Explanation
Atom mass of O is 16 U
number of gram atom of oxygen= mass/gram atomic mass
gram atomic mass is the mass of the substance represented in grams.
Gram atomic mass of oxygen is 16g.
number of atoms= 48/16= 3gram atom of 0
Molecular mass of oxygen Is 32g.
Number of gram molecules
= gram/ mass
=48/32= 1.5 molecules
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